package edu.nf.takeoutdemo.web.interceptor;

import edu.nf.takeoutdemo.commons.context.BaseContext;
import edu.nf.takeoutdemo.commons.properties.JwtProperties;
import edu.nf.takeoutdemo.commons.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;

/**
 *
 * @author zjl
 * @date 2025/10/24
 */
@Component
@Slf4j
@RequiredArgsConstructor
public class TokenAdminInterceptor implements HandlerInterceptor {
    private final JwtProperties jwtProperties;
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //判断当前拦截到的是Controller的方法还是其他资源
        if (!(handler instanceof HandlerMethod)) {
            //当前拦截到的不是动态方法，直接放行
            return true;
        }
        String token = request.getHeader(jwtProperties.getAdminTokenName());
        try {
            log.info("jwt校验:{}", token);
            Claims claims = JwtUtil.parseJWT(jwtProperties.getAdminSecretKey(), token);
            Long empId = Long.valueOf((Integer) claims.get("empId"));
            log.info("当前员工id：{}", empId);
            BaseContext.setCurrentId(empId);
            return true;
        }catch (Exception e){
            //4、不通过，响应401状态码
            response.setStatus(401);
            return false;
        }
    }
}
